H hamel



Ma 26, 1931. H, HAMEL 1,806,851

SPINNING MACHINE FOR ARTIFICIAL SILK Filed Jan. 27, 1928 S'Sheets-Sheecl /AVEIVT /Y Herman 7 Ham l,

May 26, 1931. I H. HAMEL 1,806,851

SPINNING MACHINE FOR ARTIFICIAL SILK Filed Jan. 27. 1928 3 SheetsSheet 2r Tma w #amez v mToR IVE Y5.

May 26, 1931. H. HAMEL SPINNING MACHINE FOR ARTIFICIAL SILK Filed Jan.27, 1928 3 Sheets-Sheet 5 ATTORNEYS Patented M... 26, 1931 FFICE nnmmv:EAMEL, or DRESDENI-BLASVEWITZ, GERMANY snmn'me momma roa ARTIFICIALSILK Application filed January 27, 1928,-Seria1 No.

My invention concerns a spinning machine for artificial silk withalternately rtating bobbins. For such machines devices are known wherebythe bobbin spindles are '5 automatically brought into action, while the,switching out of action or reversal of other bobbins is efl'ectedbyhand.

According to my invention the reversal is effected positively andautomatically by an operating shaft which is brought into action atpredetermined intervals of time by the driving of the machine whereby itis assured that the bobbins are wound with uniform lengths of threadindependently of the attention of the operator.

My invention is illustrated by way of example in the accompanyingdrawings, wherem I Fig. 1 shows the driving machine in side elevation,

Fig. 2 shows the same driving gear in end elevation, and i Fig. 3 showsto a smaller scale and in diagrammatic form a vertical cross-sectionthrough the bearings of the bobbinspindles and the appurtenantdrivingmembers.

Fig. 4 is a detail faceview of the friction coupling. p Fig. 5 is a sideview of the same.

Fig. 6 is a detail with parts in section of a the reversing mechanism.

Fig. 7 is a side view of the same. Fig. 8 is a detail in plan of theslotted lug and pin.

The bobbin spindles 13, 14. are tjournalled in pairs in a plurality ofclosed casings 11, 11' which arearranged beside oneanother on the,machine-frame 12, and carry at both ends a bobbin 15. The spindlesaremounted in rotatable covers 16 of the casings. The spindles end of asinnin a0 P g 13, 14 of each box llare so arranged that they lie in thesame vertical plane. The spindle which lies at the bottom e; g. 13 inFig. 2, is in this position in engagement with a driving shaft, whilethe upper, spindle is at rest. After a certain interval of time thespindles are moved round 180, so that their positions are exchan ed.

The driving of themachine is effected from the shaft 17 for examplefurnished with drivbobbin drive in such manner that at the com- 249,921,and in Germany February 7, 1927.

ing pulleys, which sets into rotation through toothed gears 18, 19, 20,the shaft 21 which at the same time drives two counter-shafts 23, .24arranged on either side thereof by means of the pinion 22. Thecounter-shaft 23 drives a cone pulley 28 throu h the gears 25, 26, 27.From the wheel 27 t rou h suitable intermediate gears 29, 30, 31 isriven a similar cone pulley 32 arranged with its ta" r in the oppositedirection. With each of the cone pulleys 28, 32 is associated a secondcone pulley 33, 34 respectively, the pulley 28 driving t e pulley 33 bymeans of a'belt 35 and the pulley 32 driving the pulley 34 by means of abelt 36. During the whole time in which themachine is in operation thetwo pairs of cone pulleys constantly rotate, the belts 35,

36 being maintained tight in the necessary manner b means of tensionrollers not pairs of conepulleys act alternately upon the 5 42 is drivena shaft 43 which through a reversing gear 4444a rotates the afore saidscrew spindle 37 alternately in opposite directions. A nut screwed onthe spindle acts upon the aforesaid belt guide 38 and at the same timeupon an engaging member 45 which alternately strikes againstabutments 46and 47 which are adjustably secured on a slide rod 48. By this abutmentthe rod '48 is carried a short distance to the left or right,'whereb bymeans of an arm49 it releases a cam-sha 50 for a half revolution andthis effects a series of reversing movements. A shaft 53 journalled inthe interior ofthe hollow cam-shaft 50 is constantly driven from theshaft 24 by means of worm gears- 51-52 and tends constantly to take withit Y frictionally engaged. A projection 55.on the driven portion of thefriction coupling 54, that is, the part connected with the shaft 53 ishowever caught alternately by an abutment 56 and an abutment 57 of thearm 49. In the case illustrated the abutment 56 holds the projection 55fast. The parts of the coupling 54 slide relatively to one another. Thiscontinues until the abutment member strikes against the abutment 46 andthereby moves the slider 48 to the left. (Figures 4,a nd 5.) Inconsequence of this the projection is released, the shaft 53 rotates 180in an anticlockwise or reverse direction and then 'a ain stops stillbecause in the meantime the a utment 57 as it moves to the left with therod 48 has come into the path of the projection 55. During thishalf-rotation a series of reversing movements takes place, the shaft 53being carried with the shaft 50 for a half rotation in one direction,and being moved in the .reverse directionby a spring 5411. When theshaft 50 moves with the shaft 53 in thedirection of the arrow in Fig.4,'the spring 54 is tensioned.

The displacement of ,the arm 49 acts through rod 58, and a cooperatinglever 59 upon a movable portion 60 of the coupling 4444a so that thedirection of rotation of the screw spindle 37 is reversed and the nutwith the part 45 now moves from left to right in the direction towardsthe abutment 47. The coupling 44-440 is constituted by a pair ofoppositely arranged bevel gears loose on the shaft 43. The element 60 isadapted to couple either to the shaft 43, said element 60 being splinedon the shaft. Both gears 44 and 44a mesh with a gear 37 a on the screwrod 37. The element 60 is shifted by means of a lever 59, pivoted at5941 to the frame, and having a fork rotatably engaging the element 60.A cam plate 60a is secured to the lever, and the said plate has adiagonal slot 606, as shown in Fig. 8. A pin on the rod 58 engages theslot, the pin- 58a having a roller .as shown, and it will be apparentthat when the rod is moved in either direction, the lever 59 is swung,to couple one ofthe gears 4444a to the shaft 43. Cam discs 61, 62mounted on the shaft 50 act upon the cam levers 63, 64 of the frictioncouplings 65, 66 arranged on the shafts of the cone pulleys 33, 34 insuch manner that instead of the pair of pulleys 28, 33 whichwereformerly driven, the pair 'of pulleys 32, 34 new sets into rotation thespindles 13 or 14 which are situated in the engaging position. At thesame time the actuating shaft 50 acts upon a reversing shaft 69 througha pair of bevel wheels 66, chain drive 67 and a toothed gear 68, whichshaft 69 runs through all the boxes 11.

Until the described moment of reversal the coupling 65 on the shaft 39of the pulley 33 was engaged and the pulley was thereby coupled with thepinion 70, which through suitable intermediate wheels 71, 7 2, 73rotated ,the'shaft 74 journalled below the spindle box wheel 78 which isrigidly connected with the two covers 16 of the appurtenant box. At themoment of reversal the shaft'69 is driven through the gear 66, 67, 68from the actuating shaft so that the worm wheel 78 executes ahalf-rotation. The wheels 76 of the spindles 1 3 thereupon come out ofengagement with the driving wheels of the shaft 74 and in their placesthe similar worm wheels 79 of the spindles 14 come into engagement withthe worms 75, so that now the spindles 13 with the full bobbins 15 standstill and the empty bobbins 15 of the spindles 14 are driven. At thesame moment, as described, the coupling 65 is thrown out andthe-coupling 66 of the shaft of the cone pulley 34 is thrown in. Now theshaft 74 is driven from 9 this shaft over the wheels 80, 81, 71, 7Q, 73.This-operation. continues until theabutment 45, which now moves towardsthe right, strikes against the abutment 47, moves the abutment 57 out ofthe path of the projection 55 and therewith effects a furtherhalf-rotation of the actuating shaft 50.

The thread is guidedffrom the spinning nozzle 82 over the thread guide83 to the bobbin 15 situated in the operative position; With thedirection of rotation of the discs 16 and the bobbins 15 indicated byarrows in Fig. 1, thewvinding up of the thread on the fresh bobbinswhich have now newly reached the operative osition and are being driventakes place wit out further ado. The to and fro motion of the threadguide 83 is effected by means of the oscillating arm 84 of a rotat ingshaft 85 which is rotated to and fro from the driving gear of the devicein a manner not illustrated. a

vAs is readily apparent, when the part 45 strikes against the abutment47 the operation described is repeated, i. e. the rotation of the screwspindle 37 is reversed, the coupling 66 again thrown out and thecoupling 65 therefore again thrown in, The spindles 13, on which emptybobbins 15 are now mounted, again reach the operative position and thefull bobbins of the spindles .14 come to a standstill. By the adjustmentof the abutments 46, 47 the length of the thread which at any time isdelivered on the bobbins can be secured in desired manner.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is tobe performed, I declare thatwhat I claim is 1. In a spinning machine for artificial silk, a drivinggear, two sets of rotating bobbins,

-means for alternately connecting one of the sets of bobbins with thedriving gear, an actuating shaft positively and automatically actuatingthe said connecting means, an abutment member constantly moved to andfro longitudinally by the said driving gear, stops adjustable toward andfrom each other for controlling the connecting means and initiated tooperate said'means by engagement of the abutment member with thestops.

2. In a spinning machine for artificial silk, a driving gear, two setsof rotating bobbins, means for alternately connecting one of the sets ofbobbins with the driving gear, an actuating shaft positively andautomatically a ctuating the said connecting means, an abutment member,a gear train constantly imparting a to and fro movement to the saidabutment member deriving its motion from the said driving gear,adjustable stops operatively connected with the connectin'gmeans andcooperating with the said abutment member, means for. operating the saidconnecting means'upon impact of the abutment member against the saidstops, and means for reversing the driving direction of the, saidgeartrain upon each'cooperation of the said abutment member and stops.

3. In a spinning machin'e,a pair of bobbin supporting shafts; a swingingsupport in which the. shafts are journaled, means to rotate the shafts,driving mechanism, means operated by the driving mechanism at selected Iintervals for swinging'the support to bring the shafts in alternationinto engagement with the rotating means, and means between 'the driving'mechan-ism and the rotating means to cause a gradual decrease in thespeed of rotation of the bobbin supporting shafts after they are broughtinto engagement with the rotating means.

decreasing as the yarn is wound thereon,

means to reverse the carrier at selected intervals, and means tocoordinate the operation of the reversing means and the speed slowingmeans, so that an unwound spindle will be in position .to-berotated whenthe rotating means is at its highest speed. i

In testimony whereof I have aflixed my signature.

HERMANN HAMEL.

4. In a spinning machine, a pair of bobbin 1 supporting shafts, aswinging support in which the shafts are journaled, means to rotate theshafts, driving mechanism, means operated by the driving mechanism atselected intervals for swinging the support tobring the shafts inalternation into engagement with the rotating means, and means betweenthe driving mechanism and the rotating means to cause a gradual decreasein the speed of rotation of the bobbin supporting shafts I 7 after theyare brought into engagement with the rotating means, said last namedmeans including oppositely arranged pairs of com

